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Expired Canadian patentCanada

Method for improving combustion in combustion engines

CA 1323259 C · Owner: Olsson, John · Inventors: Lindstrom, Arne; Olsson, Gunnar; Olsson, John

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Method to improve the combustion in a combustion engine for reducing the content of harmful components of the exhausts whereby a liquid composition including a peroxide or a peroxo compound is supplied to the combustion chamber. The liquid composition is injected in such a way that a portion of the liquid composition passes through the outlet valve when the, engine goes from exhaust to intake stroke thus causing an, improved afterburning in both exhaust pipe and possible catalytic equipment.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 27, 1989
GrantedOctober 19, 1993
Term endedOctober 19, 2010
Patent numberCA 1323259 C
Classification (IPC)F02M25/10 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJan 27, 1989Patent grantedOct 19, 1993Term endedOct 19, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.